Work, Energy, and Power
A ball with a mass of 4 kg is moving at a speed of 5 m/s. What is its translational kinetic energy?
An object has a kinetic energy of 100 J and a mass of 8 kg. What is its velocity?
If the mass of an object increases by 50% and its velocity decreases by 20%, what is the approximate percentage change in its kinetic energy?
Which of the following statements is true regarding kinetic energy?
Two objects with masses 2 kg and 3 kg are moving in opposite directions with speeds of 5 m/s and 2 m/s, respectively. What is the total kinetic energy of the system?
A person is sitting on a train moving at a constant velocity of 20 m/s. What is the approximate kinetic energy of the person relative to the train?
A 70 kg person walks at a speed of 1 m/s inside a train moving at 30 m/s. What is the person's kinetic energy relative to the ground?
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A 2 kg object has 16 J of work done on it. What is the change in its kinetic energy?
A 5 kg object slides down a frictionless ramp from a height of 10 m. What is its kinetic energy at the bottom of the ramp? (Assume )
A bicycle has a mass of 15 kg and is moving at a speed of 2 m/s. What is its translational kinetic energy?